Objective: I can determine the effect affixes have on root words.

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Objective I can determine the effect affixes
have on root words.
Key Vocabulary affix prefix suffix root
word effect
Essential Questions 1. What is an affix? 2.
Define prefix and suffix. 3. How do affixes
change root words?
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Base Words
A root word is a word in its simplest form. A
root word has nothing added to it. Examples Part
Ground Write Read Quiet
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Prefixes

• Prefixes are added to the beginning of a root
  word.
• They change the meaning of the root word.
• Examples
• Un happy unhappy
• Re do redo

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Base Words
Write the root words on the back of your
notetaker. reheat unhappy antisocial coworker
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Prefix Meanings
de- from, down inter- between under-
beneath anti- against mono- one co-
together, with re- again
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PrefixesAdd a prefix to the beginning of each
word to make a new word. Connect the new word to
its meaning.
de- , inter- , under- , anti - , mono- , co- , re-

• operate a craft together
• beneath the surface of the earth
• request or demand again
• break between
• one sound
• step down

1. ____pilot 2. ____ground 3. ____claim 4.
____rupt 5. ____tone 6. ____grade
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PrefixesAdd a prefix to the beginning of each
word to make a new word. Connect the new word to
its meaning.
de- , inter- , under- , anti - , mono- , co- , re-

• operate a craft together
• beneath the surface of the earth
• request or demand again
• break between
• one sound
• step down

1. ___co_pilot 2. _under___ground 3.
__re__claim 4. _inter___rupt 5.
__mono__tone 6. __de__grade
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Suffixes

• Suffixes are added to the end of a root word.
• They change the root words part of speech.
• They can change the meaning of the root word.
• wonder(n) ful wonderful(adj)
• quick(v) ly quickly(adv)

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Suffix Meanings
-ly like or manner of -ful full of -ed in
the past -able able to, can do -en made
of -fic making, causing
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SuffixesAdd a suffix to the end of each root
word. Draw a line to its new meaning.
-ly , -ful , -ed , -able , -en , -fic

• 1. help____
• 2. scienti____
• 3. wood____
• 4. part____
• 5. quick____
• 6. agree____

• full of aid
• causing or making of science
• made of tree fiber
• came away
• in a fast manner
• can be of like minds

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SuffixesAdd a suffix to the end of each root
word. Draw a line to its new meaning.
-ly , -ful , -ed , -able , -en , -fic

• 1. helpful____
• 2. scientific___
• 3. wooden____
• 4. parted____
• 5. quickly____
• 6. agreeable____

• full of aid
• causing or making of science
• made of tree fiber
• came away
• in a fast manner
• can be of like minds

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Match each word with its definition.
1. healthful
a. made of silk
2. slowly
b. To heat again
3. unlock
c. the opposite of lock
4. reheat
d. to read again
5. silken
e. full of health
6. uncomfortable
f. in a slow way
7. reread
g. not comfortable
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Match each word with its definition.
1. healthful
a. made of silk
2. slowly
b. To heat again
3. unlock
c. the opposite of lock
4. reheat
d. to read again
5. silken
e. full of health
6. uncomfortable
f. in a slow way
7. reread
g. not comfortable
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Complete your Notetaker

• Now, you should be able to define your Key
  Vocabulary
• Answer the Essential Questions

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Prefix Suffix Song

• http//www.youtube.com/watch?vZOJrjNR7ZZM

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Flash Cards
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Objective I can determine the effect affixes
have on root words.
Key Vocabulary affix prefix suffix root
word effect
Essential Questions 1. What is an affix? 2.
Define prefix and suffix. 3. How do affixes
change root words?
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Prefixes

• RE- After
• Non- not
• Pre- Before
• Trans- Across
• Ful- Full of
• Sub Under
• Mono - One

• Anti Against
• Under- Under
• Dis Opposite or not
• De- Opposite
• Re Again
• Semi Half
• Bi - two

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Suffixes

• Ty state of
• Less Without
• Es More than one
• Ing Changes a word to a verb
• Able Can be done
• Ious Possessing the quality of
• Est Comaparative

• Ness State of or condition of
• Tion Act or process
• Ly characterisitc of
• Y characterized by
• Ful full of
• Ed makes a word a past tense verb